Subaru BRZ 2017–2018 — technical service bulletin
Bulletin 15-254-19R · NHTSA communication 10198743 · issued Jun 3, 2021
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
6
vehicle entries
Official summary
Map Data Update Procedure for Harman Gen 3.0 Navigation Equipped Head Units (H/U)
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.